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80960976 = 243219127233
BaseRepresentation
bin1001101001101…
…01110111010000
312122100020120200
410310311313100
5131211222401
612011135200
72002104555
oct464656720
9178306520
1080960976
11417781a8
1223144500
1313a08905
14aa76a2c
157193686
hex4d35dd0

80960976 has 120 divisors (see below), whose sum is σ = 241413120. Its totient is φ = 25256448.

The previous prime is 80960963. The next prime is 80960981. The reversal of 80960976 is 67906908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347356 + ... + 347588.

It is an arithmetic number, because the mean of its divisors is an integer number (2011776).

Almost surely, 280960976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80960976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120706560).

80960976 is an abundant number, since it is smaller than the sum of its proper divisors (160452144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80960976 is a wasteful number, since it uses less digits than its factorization.

80960976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 80960976 is about 8997.8317388135. The cubic root of 80960976 is about 432.6053755513.

The spelling of 80960976 in words is "eighty million, nine hundred sixty thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 127 144 152 171 228 233 254 304 342 381 456 466 508 684 699 762 912 932 1016 1143 1368 1398 1524 1864 2032 2097 2286 2413 2736 2796 3048 3728 4194 4427 4572 4826 5592 6096 7239 8388 8854 9144 9652 11184 13281 14478 16776 17708 18288 19304 21717 26562 28956 29591 33552 35416 38608 39843 43434 53124 57912 59182 70832 79686 86868 88773 106248 115824 118364 159372 173736 177546 212496 236728 266319 318744 347472 355092 473456 532638 562229 637488 710184 1065276 1124458 1420368 1686687 2130552 2248916 3373374 4261104 4497832 5060061 6746748 8995664 10120122 13493496 20240244 26986992 40480488 80960976